(19)

(11)

EP 0 988 699 A2

(12)

(88) Date of publication A3: 02.12.1999 (43) Date of publication: 29.03.2000 Bulletin 2000/13 (21) Application number: 99902725.3 (22) Date of filing: 08.02.1999

(51) International Patent Classification (IPC)7: H03H 21/00 (86) International application number: PCT/IB9900/208 (87) International publication number: WO 9944/286 (02.09.1999 Gazette 1999/35)

(84) Designated Contracting States: DE FR GB (30) Priority: 27.02.1998 US 31698 (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)	(72) Inventors: WITTIG, Karl NL-5656 AA Eindhoven (NL) TURKENICH, Gene NL-5656 AA Eindhoven (NL) (74) Representative: Groenendaal, Antonius Wilhelmus Maria  INTERNATIONAAL OCTROOIBUREAU B.V.,Prof. Holstlaan 6 5656 AA Eindhoven 5656 AA Eindhoven (NL)